1 /* Copyright (c) 2008 The Board of Trustees of The Leland Stanford
4 * We are making the OpenFlow specification and associated documentation
5 * (Software) available for public use and benefit with the expectation
6 * that others will use, modify and enhance the Software and contribute
7 * those enhancements back to the community. However, since we would
8 * like to make the Software available for broadest use, with as few
9 * restrictions as possible permission is hereby granted, free of
10 * charge, to any person obtaining a copy of this Software to deal in
11 * the Software under the copyrights without restriction, including
12 * without limitation the rights to use, copy, modify, merge, publish,
13 * distribute, sublicense, and/or sell copies of the Software, and to
14 * permit persons to whom the Software is furnished to do so, subject to
15 * the following conditions:
17 * The above copyright notice and this permission notice shall be
18 * included in all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
24 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
25 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
26 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
29 * The name and trademarks of copyright holder(s) may NOT be used in
30 * advertising or publicity pertaining to the Software or any
31 * derivatives without specific, written prior permission.
37 #include <netinet/in.h>
44 #include "command-line.h"
50 #include "openflow-netlink.h"
53 #include "socket-util.h"
55 #include "ofp-print.h"
58 #include "vconn-ssl.h"
61 #define THIS_MODULE VLM_dpctl
63 #define DEFAULT_MAX_IDLE 60
64 #define MAX_ADD_ACTS 5
66 static const char* ifconfigbin = "/sbin/ifconfig";
72 void (*handler)(int argc, char *argv[]);
75 static struct command all_commands[];
77 static void usage(void) NO_RETURN;
78 static void parse_options(int argc, char *argv[]);
80 int main(int argc, char *argv[])
84 set_program_name(argv[0]);
86 parse_options(argc, argv);
91 fatal(0, "missing command name; use --help for help");
93 for (p = all_commands; p->name != NULL; p++) {
94 if (!strcmp(p->name, argv[0])) {
96 if (n_arg < p->min_args)
97 fatal(0, "'%s' command requires at least %d arguments",
98 p->name, p->min_args);
99 else if (n_arg > p->max_args)
100 fatal(0, "'%s' command takes at most %d arguments",
101 p->name, p->max_args);
103 p->handler(argc, argv);
108 fatal(0, "unknown command '%s'; use --help for help", argv[0]);
114 parse_options(int argc, char *argv[])
116 static struct option long_options[] = {
117 {"verbose", optional_argument, 0, 'v'},
118 {"help", no_argument, 0, 'h'},
119 {"version", no_argument, 0, 'V'},
120 VCONN_SSL_LONG_OPTIONS
123 char *short_options = long_options_to_short_options(long_options);
129 c = getopt_long(argc, argv, short_options, long_options, &indexptr);
139 printf("%s "VERSION" compiled "__DATE__" "__TIME__"\n", argv[0]);
143 vlog_set_verbosity(optarg);
146 VCONN_SSL_OPTION_HANDLERS
161 printf("%s: OpenFlow switch management utility\n"
162 "usage: %s [OPTIONS] COMMAND [ARG...]\n"
164 "\nCommands that apply to local datapaths only:\n"
165 " adddp nl:DP_ID add a new local datapath DP_ID\n"
166 " deldp nl:DP_ID delete local datapath DP_ID\n"
167 " addif nl:DP_ID IFACE add IFACE as a port on DP_ID\n"
168 " delif nl:DP_ID IFACE delete IFACE as a port on DP_ID\n"
169 " monitor nl:DP_ID print packets received\n"
171 "\nCommands that apply to local datapaths and remote switches:\n"
172 " show SWITCH show information\n"
173 " dump-tables SWITCH print table stats\n"
174 " dump-ports SWITCH print port statistics\n"
175 " dump-flows SWITCH print all flow entries\n"
176 " dump-flows SWITCH FLOW print matching FLOWs\n"
177 " dump-aggregate SWITCH print aggregate flow statistics\n"
178 " dump-aggregate SWITCH FLOW print aggregate stats for FLOWs\n"
179 " add-flow SWITCH FLOW add flow described by FLOW\n"
180 " add-flows SWITCH FILE add flows from FILE\n"
181 " del-flows SWITCH FLOW delete matching FLOWs\n"
182 " ping SWITCH [N] latency of N-byte echos\n"
183 " benchmark SWITCH N COUNT bandwidth of COUNT N-byte echos\n"
184 "where each SWITCH is an active OpenFlow connection method.\n",
185 program_name, program_name);
186 vconn_usage(true, false);
187 printf("\nOptions:\n"
188 " -v, --verbose=MODULE:FACILITY:LEVEL configure logging levels\n"
189 " -v, --verbose set maximum verbosity level\n"
190 " -h, --help display this help message\n"
191 " -V, --version display version information\n");
195 static void run(int retval, const char *message, ...)
198 static void run(int retval, const char *message, ...)
203 fprintf(stderr, "%s: ", program_name);
204 va_start(args, message);
205 vfprintf(stderr, message, args);
208 fputs(": unexpected end of file\n", stderr);
210 fprintf(stderr, ": %s\n", strerror(retval));
218 /* Netlink-only commands. */
220 static int if_up(const char* intf)
223 snprintf(command, sizeof command, "%s %s up &> /dev/null",
225 return system(command);
228 static void open_nl_vconn(const char *name, bool subscribe, struct dpif *dpif)
230 if (strncmp(name, "nl:", 3)
232 || name[strspn(name + 3, "0123456789") + 3]) {
233 fatal(0, "%s: argument is not of the form \"nl:DP_ID\"", name);
235 run(dpif_open(atoi(name + 3), subscribe, dpif), "opening datapath");
238 static void do_add_dp(int argc UNUSED, char *argv[])
241 open_nl_vconn(argv[1], false, &dp);
242 run(dpif_add_dp(&dp), "add_dp");
246 static void do_del_dp(int argc UNUSED, char *argv[])
249 open_nl_vconn(argv[1], false, &dp);
250 run(dpif_del_dp(&dp), "del_dp");
254 static void do_add_port(int argc UNUSED, char *argv[])
258 open_nl_vconn(argv[1], false, &dp);
259 run(dpif_add_port(&dp, argv[2]), "add_port");
263 static void do_del_port(int argc UNUSED, char *argv[])
266 open_nl_vconn(argv[1], false, &dp);
267 run(dpif_del_port(&dp, argv[2]), "del_port");
271 static void do_monitor(int argc UNUSED, char *argv[])
274 open_nl_vconn(argv[1], true, &dp);
277 run(dpif_recv_openflow(&dp, &b, true), "dpif_recv_openflow");
278 ofp_print(stderr, b->data, b->size, 2);
282 #endif /* HAVE_NETLINK */
284 /* Generic commands. */
287 alloc_openflow_buffer(size_t openflow_len, uint8_t type,
288 struct buffer **bufferp)
290 struct buffer *buffer;
291 struct ofp_header *oh;
293 buffer = *bufferp = buffer_new(openflow_len);
294 oh = buffer_put_uninit(buffer, openflow_len);
295 memset(oh, 0, openflow_len);
296 oh->version = OFP_VERSION;
299 oh->xid = random_uint32();
304 alloc_stats_request(size_t body_len, uint16_t type, struct buffer **bufferp)
306 struct ofp_stats_request *rq;
307 rq = alloc_openflow_buffer((offsetof(struct ofp_stats_request, body)
308 + body_len), OFPT_STATS_REQUEST, bufferp);
309 rq->type = htons(type);
310 rq->flags = htons(0);
315 send_openflow_buffer(struct vconn *vconn, struct buffer *buffer)
317 struct ofp_header *oh;
319 oh = buffer_at_assert(buffer, 0, sizeof *oh);
320 oh->length = htons(buffer->size);
322 run(vconn_send_block(vconn, buffer), "failed to send packet to switch");
325 static struct buffer *
326 transact_openflow(struct vconn *vconn, struct buffer *request)
328 uint32_t send_xid = ((struct ofp_header *) request->data)->xid;
330 send_openflow_buffer(vconn, request);
333 struct buffer *reply;
335 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
336 recv_xid = ((struct ofp_header *) reply->data)->xid;
337 if (send_xid == recv_xid) {
341 VLOG_DBG("received reply with xid %08"PRIx32" != expected %08"PRIx32,
343 buffer_delete(reply);
348 dump_transaction(const char *vconn_name, struct buffer *request)
351 struct buffer *reply;
353 run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
354 reply = transact_openflow(vconn, request);
355 ofp_print(stdout, reply->data, reply->size, 1);
360 dump_trivial_transaction(const char *vconn_name, uint8_t request_type)
362 struct buffer *request;
363 alloc_openflow_buffer(sizeof(struct ofp_header), request_type, &request);
364 dump_transaction(vconn_name, request);
368 dump_stats_transaction(const char *vconn_name, struct buffer *request)
370 uint32_t send_xid = ((struct ofp_header *) request->data)->xid;
374 run(vconn_open_block(vconn_name, &vconn), "connecting to %s", vconn_name);
375 send_openflow_buffer(vconn, request);
378 struct buffer *reply;
380 run(vconn_recv_block(vconn, &reply), "OpenFlow packet receive failed");
381 recv_xid = ((struct ofp_header *) reply->data)->xid;
382 if (send_xid == recv_xid) {
383 struct ofp_stats_reply *osr;
385 ofp_print(stdout, reply->data, reply->size, 1);
387 osr = buffer_at(reply, 0, sizeof *osr);
388 done = !osr || !(ntohs(osr->flags) & OFPSF_REPLY_MORE);
390 VLOG_DBG("received reply with xid %08"PRIx32" "
391 "!= expected %08"PRIx32, recv_xid, send_xid);
393 buffer_delete(reply);
399 dump_trivial_stats_transaction(const char *vconn_name, uint8_t stats_type)
401 struct buffer *request;
402 alloc_stats_request(0, stats_type, &request);
403 dump_stats_transaction(vconn_name, request);
407 do_show(int argc UNUSED, char *argv[])
409 dump_trivial_transaction(argv[1], OFPT_FEATURES_REQUEST);
410 dump_trivial_transaction(argv[1], OFPT_GET_CONFIG_REQUEST);
415 do_dump_tables(int argc, char *argv[])
417 dump_trivial_stats_transaction(argv[1], OFPST_TABLE);
422 str_to_int(const char *str)
425 if (sscanf(str, "%"SCNu32, &value) != 1) {
426 fatal(0, "invalid numeric format %s", str);
432 str_to_mac(const char *str, uint8_t mac[6])
434 if (sscanf(str, "%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8":%"SCNx8,
435 &mac[0], &mac[1], &mac[2], &mac[3], &mac[4], &mac[5]) != 6) {
436 fatal(0, "invalid mac address %s", str);
441 str_to_ip(const char *str, uint32_t *ip)
443 struct in_addr in_addr;
446 retval = lookup_ip(str, &in_addr);
448 fatal(0, "%s: could not convert to IP address", str);
450 *ip = in_addr.s_addr;
454 str_to_action(char *str, struct ofp_action *action, int *n_actions)
458 int max_actions = *n_actions;
460 char *saveptr = NULL;
462 memset(action, 0, sizeof(*action) * max_actions);
463 for (i=0, act = strtok_r(str, ", \t\r\n", &saveptr);
464 i<max_actions && act;
465 i++, act = strtok_r(NULL, ", \t\r\n", &saveptr))
469 /* Arguments are separated by colons */
470 arg = strchr(act, ':');
476 if (!strcasecmp(act, "mod_vlan")) {
477 action[i].type = htons(OFPAT_SET_DL_VLAN);
479 if (!strcasecmp(arg, "strip")) {
480 action[i].arg.vlan_id = htons(OFP_VLAN_NONE);
482 action[i].arg.vlan_id = htons(str_to_int(arg));
484 } else if (!strcasecmp(act, "output")) {
485 port = str_to_int(arg);
486 } else if (!strcasecmp(act, "TABLE")) {
488 } else if (!strcasecmp(act, "NORMAL")) {
490 } else if (!strcasecmp(act, "FLOOD")) {
492 } else if (!strcasecmp(act, "ALL")) {
494 } else if (!strcasecmp(act, "CONTROLLER")) {
495 port = OFPP_CONTROLLER;
497 if (!strcasecmp(arg, "all")) {
498 action[i].arg.output.max_len= htons(0);
500 action[i].arg.output.max_len= htons(str_to_int(arg));
503 } else if (!strcasecmp(act, "LOCAL")) {
505 } else if (strspn(act, "0123456789") == strlen(act)) {
506 port = str_to_int(act);
508 fatal(0, "Unknown action: %s", act);
511 if (port != OFPP_MAX) {
512 action[i].type = htons(OFPAT_OUTPUT);
513 action[i].arg.output.port = htons(port);
521 str_to_flow(char *string, struct ofp_match *match,
522 struct ofp_action *action, int *n_actions, uint8_t *table_idx,
523 uint16_t *priority, uint16_t *max_idle)
528 enum { F_U8, F_U16, F_MAC, F_IP } type;
532 #define F_OFS(MEMBER) offsetof(struct ofp_match, MEMBER)
533 static const struct field fields[] = {
534 { "in_port", OFPFW_IN_PORT, F_U16, F_OFS(in_port) },
535 { "dl_vlan", OFPFW_DL_VLAN, F_U16, F_OFS(dl_vlan) },
536 { "dl_src", OFPFW_DL_SRC, F_MAC, F_OFS(dl_src) },
537 { "dl_dst", OFPFW_DL_DST, F_MAC, F_OFS(dl_dst) },
538 { "dl_type", OFPFW_DL_TYPE, F_U16, F_OFS(dl_type) },
539 { "nw_src", OFPFW_NW_SRC, F_IP, F_OFS(nw_src) },
540 { "nw_dst", OFPFW_NW_DST, F_IP, F_OFS(nw_dst) },
541 { "nw_proto", OFPFW_NW_PROTO, F_U8, F_OFS(nw_proto) },
542 { "tp_src", OFPFW_TP_SRC, F_U16, F_OFS(tp_src) },
543 { "tp_dst", OFPFW_TP_DST, F_U16, F_OFS(tp_dst) },
554 *priority = OFP_DEFAULT_PRIORITY;
557 *max_idle = DEFAULT_MAX_IDLE;
560 act_str = strstr(string, "action");
562 fatal(0, "must specify an action");
566 act_str = strchr(act_str, '=');
568 fatal(0, "must specify an action");
573 str_to_action(act_str, action, n_actions);
575 memset(match, 0, sizeof *match);
576 wildcards = OFPFW_ALL;
577 for (name = strtok(string, "="), value = strtok(NULL, ", \t\r\n");
579 name = strtok(NULL, "="), value = strtok(NULL, ", \t\r\n"))
581 const struct field *f;
584 if (table_idx && !strcmp(name, "table")) {
585 *table_idx = atoi(value);
589 if (priority && !strcmp(name, "priority")) {
590 *priority = atoi(value);
594 if (max_idle && !strcmp(name, "max_idle")) {
595 *max_idle = atoi(value);
599 for (f = fields; f < &fields[ARRAY_SIZE(fields)]; f++) {
600 if (!strcmp(f->name, name)) {
604 fprintf(stderr, "%s: unknown field %s (fields are",
606 for (f = fields; f < &fields[ARRAY_SIZE(fields)]; f++) {
610 fprintf(stderr, " %s", f->name);
612 fprintf(stderr, ")\n");
616 data = (char *) match + f->offset;
617 if (!strcmp(value, "*") || !strcmp(value, "ANY")) {
618 wildcards |= f->wildcard;
620 wildcards &= ~f->wildcard;
621 if (f->type == F_U8) {
622 *(uint8_t *) data = str_to_int(value);
623 } else if (f->type == F_U16) {
624 *(uint16_t *) data = htons(str_to_int(value));
625 } else if (f->type == F_MAC) {
626 str_to_mac(value, data);
627 } else if (f->type == F_IP) {
628 str_to_ip(value, data);
634 if (name && !value) {
635 fatal(0, "field %s missing value", name);
637 match->wildcards = htons(wildcards);
640 static void do_dump_flows(int argc, char *argv[])
642 struct ofp_flow_stats_request *req;
643 struct buffer *request;
645 req = alloc_stats_request(sizeof *req, OFPST_FLOW, &request);
646 str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
647 &req->table_id, NULL, NULL);
648 memset(req->pad, 0, sizeof req->pad);
650 dump_stats_transaction(argv[1], request);
653 static void do_dump_aggregate(int argc, char *argv[])
655 struct ofp_aggregate_stats_request *req;
656 struct buffer *request;
658 req = alloc_stats_request(sizeof *req, OFPST_AGGREGATE, &request);
659 str_to_flow(argc > 2 ? argv[2] : "", &req->match, NULL, 0,
660 &req->table_id, NULL, NULL);
661 memset(req->pad, 0, sizeof req->pad);
663 dump_stats_transaction(argv[1], request);
666 static void do_add_flow(int argc, char *argv[])
669 struct buffer *buffer;
670 struct ofp_flow_mod *ofm;
671 uint16_t priority, max_idle;
673 int n_actions = MAX_ADD_ACTS;
675 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
677 /* Parse and send. */
678 size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
679 ofm = alloc_openflow_buffer(size, OFPT_FLOW_MOD, &buffer);
680 str_to_flow(argv[2], &ofm->match, &ofm->actions[0], &n_actions,
681 NULL, &priority, &max_idle);
682 ofm->command = htons(OFPFC_ADD);
683 ofm->max_idle = htons(max_idle);
684 ofm->buffer_id = htonl(UINT32_MAX);
685 ofm->priority = htons(priority);
686 ofm->reserved = htonl(0);
688 /* xxx Should we use the buffer library? */
689 buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
691 send_openflow_buffer(vconn, buffer);
695 static void do_add_flows(int argc, char *argv[])
702 file = fopen(argv[2], "r");
704 fatal(errno, "%s: open", argv[2]);
707 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
708 while (fgets(line, sizeof line, file)) {
709 struct buffer *buffer;
710 struct ofp_flow_mod *ofm;
711 uint16_t priority, max_idle;
713 int n_actions = MAX_ADD_ACTS;
717 /* Delete comments. */
718 comment = strchr(line, '#');
723 /* Drop empty lines. */
724 if (line[strspn(line, " \t\n")] == '\0') {
728 /* Parse and send. */
729 size = sizeof *ofm + (sizeof ofm->actions[0] * MAX_ADD_ACTS);
730 ofm = alloc_openflow_buffer(size, OFPT_FLOW_MOD, &buffer);
731 str_to_flow(line, &ofm->match, &ofm->actions[0], &n_actions,
732 NULL, &priority, &max_idle);
733 ofm->command = htons(OFPFC_ADD);
734 ofm->max_idle = htons(max_idle);
735 ofm->buffer_id = htonl(UINT32_MAX);
736 ofm->priority = htons(priority);
737 ofm->reserved = htonl(0);
739 /* xxx Should we use the buffer library? */
740 buffer->size -= (MAX_ADD_ACTS - n_actions) * sizeof ofm->actions[0];
742 send_openflow_buffer(vconn, buffer);
748 static void do_del_flows(int argc, char *argv[])
753 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
754 struct buffer *buffer;
755 struct ofp_flow_mod *ofm;
759 /* Parse and send. */
761 ofm = alloc_openflow_buffer(size, OFPT_FLOW_MOD, &buffer);
762 str_to_flow(argc > 2 ? argv[2] : "", &ofm->match, NULL, 0, NULL,
764 ofm->command = htons(OFPFC_DELETE);
765 ofm->max_idle = htons(0);
766 ofm->buffer_id = htonl(UINT32_MAX);
767 ofm->priority = htons(priority);
768 ofm->reserved = htonl(0);
770 send_openflow_buffer(vconn, buffer);
776 do_dump_ports(int argc, char *argv[])
778 dump_trivial_stats_transaction(argv[1], OFPST_PORT);
782 do_ping(int argc, char *argv[])
784 size_t max_payload = 65535 - sizeof(struct ofp_header);
785 unsigned int payload;
789 payload = argc > 2 ? atoi(argv[2]) : 64;
790 if (payload > max_payload) {
791 fatal(0, "payload must be between 0 and %zu bytes", max_payload);
794 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
795 for (i = 0; i < 10; i++) {
796 struct timeval start, end;
797 struct buffer *request, *reply;
798 struct ofp_header *rq_hdr, *rpy_hdr;
800 rq_hdr = alloc_openflow_buffer(sizeof(struct ofp_header) + payload,
801 OFPT_ECHO_REQUEST, &request);
802 random_bytes(rq_hdr + 1, payload);
804 gettimeofday(&start, NULL);
805 reply = transact_openflow(vconn, buffer_clone(request));
806 gettimeofday(&end, NULL);
808 rpy_hdr = reply->data;
809 if (reply->size != request->size
810 || memcmp(rpy_hdr + 1, rq_hdr + 1, payload)
811 || rpy_hdr->xid != rq_hdr->xid
812 || rpy_hdr->type != OFPT_ECHO_REPLY) {
813 printf("Reply does not match request. Request:\n");
814 ofp_print(stdout, request, request->size, 2);
816 ofp_print(stdout, reply, reply->size, 2);
818 printf("%d bytes from %s: xid=%08"PRIx32" time=%.1f ms\n",
819 reply->size - sizeof *rpy_hdr, argv[1], rpy_hdr->xid,
820 (1000*(double)(end.tv_sec - start.tv_sec))
821 + (.001*(end.tv_usec - start.tv_usec)));
822 buffer_delete(request);
823 buffer_delete(reply);
829 do_benchmark(int argc, char *argv[])
831 size_t max_payload = 65535 - sizeof(struct ofp_header);
832 struct timeval start, end;
833 unsigned int payload_size, message_size;
839 payload_size = atoi(argv[2]);
840 if (payload_size > max_payload) {
841 fatal(0, "payload must be between 0 and %zu bytes", max_payload);
843 message_size = sizeof(struct ofp_header) + payload_size;
845 count = atoi(argv[3]);
847 printf("Sending %d packets * %u bytes (with header) = %u bytes total\n",
848 count, message_size, count * message_size);
850 run(vconn_open_block(argv[1], &vconn), "connecting to %s", argv[1]);
851 gettimeofday(&start, NULL);
852 for (i = 0; i < count; i++) {
853 struct buffer *request;
854 struct ofp_header *rq_hdr;
856 rq_hdr = alloc_openflow_buffer(message_size, OFPT_ECHO_REQUEST,
858 memset(rq_hdr + 1, 0, payload_size);
859 buffer_delete(transact_openflow(vconn, request));
861 gettimeofday(&end, NULL);
864 duration = ((1000*(double)(end.tv_sec - start.tv_sec))
865 + (.001*(end.tv_usec - start.tv_usec)));
866 printf("Finished in %.1f ms (%.0f packets/s) (%.0f bytes/s)\n",
867 duration, count / (duration / 1000.0),
868 count * message_size / (duration / 1000.0));
871 static void do_help(int argc UNUSED, char *argv[] UNUSED)
876 static struct command all_commands[] = {
878 { "adddp", 1, 1, do_add_dp },
879 { "deldp", 1, 1, do_del_dp },
880 { "addif", 2, 2, do_add_port },
881 { "delif", 2, 2, do_del_port },
884 { "show", 1, 1, do_show },
886 { "help", 0, INT_MAX, do_help },
887 { "monitor", 1, 1, do_monitor },
888 { "dump-tables", 1, 1, do_dump_tables },
889 { "dump-flows", 1, 2, do_dump_flows },
890 { "dump-aggregate", 1, 2, do_dump_aggregate },
891 { "add-flow", 2, 2, do_add_flow },
892 { "add-flows", 2, 2, do_add_flows },
893 { "del-flows", 1, 2, do_del_flows },
894 { "dump-ports", 1, 1, do_dump_ports },
895 { "ping", 1, 2, do_ping },
896 { "benchmark", 3, 3, do_benchmark },
897 { NULL, 0, 0, NULL },